Improvement in pipe-couplings



, UNITED v'Sfr/rires ATNT OFFICE.'-

' WARREN' N. ABBornor BOSTON, MASSACHUSETTS, AssIeNoarO HIMSELF 4.AND 'DWIGHT B. RIGH, OF THE .SAME PLACE.

.IMPROVEMENT mi P iPEfcOuPLiNes.'

` Specification forming part of Letters Patent No. @6,603, dated February 28,1855.A

To all it may comiernz:4

Be it known that I, WARREN N. ABBOTT, 'of' Bostomin-the county of Suiolk and State ot' Massachusetts, have invented an Improved Pipe-Coupling, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings,

making 'part of this spe'cilication, Vin Which-- Figure 1 is a section' through my improved coupling, showing the manner in which the vpipe is .attached thereto. views of the two portions'of the .couplingdetached.v Fig.A 4 is a view of apiece of 4lead Figs. 2 and 3 are pipe having its end slightly enlarged', so as to iit over vthe conical end of the coupling.

AThe culinary method of connecting-coupjliugsto lead pipes Visl'iy means ot' a jointof solden-"the formingcF-whieh rcquires'leansid crable time, andthe joint is both clumsy andl expensive.

My linvention has for its olgiect to overcome these diiculties and to produce a coupling by means of' which a pipe can readily be attached or pieced .at any desired point without the use-` of solder5aud it consists in a detachable screw coupling in which the end of the4 pipe is confined-between thetwo portions of the coupling and compressed tightly in place,

ywhereby all danger of leakage is prevented.

To enable others skilled in the art to understand and use my invention, I will proceed to describe the manner in which I have carried itout.,j

In the said drawings, Al represents a lead pipe, over which is 'slipped a' screw-nut, B, provided with 'a ange, a, and awasher, b, is also placed over` the end ofthe pipe, which is then enlarged or ared ont by means'of Aa 'conical plug or otherwise, as seen in Fig, 4.

0 is a nipple, one end, d, of which is made conical and is iittcd intothe enlarged end c of the pipe A. The nut B is now brought'up and screwedonto 'the nipple O, which is provided with a screw-thread on its exterior surface, the nut B Aforcing the enlarged end cof the pipe A anto the conical end :l o f the nipinsuring a perfect joint without theuse of solder.' The interior of the nipple() is Vprovided with a screw-threadv inthe ordinary Y "manner, by whichithe coupling cangbe attached at any desired point.l

' The washer b causes the nut B to turn more smoothly on the end of the pipe and prevents it from being twisted'as the nut is turned. It

may, however, be dispensed with if desired#- rIhe above-described coupling may ebe em ployed for a variety of purposes. Forinstance, when a faucet is to be inserted in soi-ne portion of the length of a pipe, both ends of the T- shaped piece, into which lthe faucet is screwed,

are made conical and provided with screwthreads in a manner similar to the nipple 0,.

and a'shcrtpieceof the pipe-.being removed,

ascre\vnut. B,and washer are slipped over 4each end of the pipe where the joints are to be made, and these ends beingenlarge'd'or 4 dared out, as seen in Fig. 4, the conical ends t of the' Tsha'pcd piece are inserted thereinandthe nuts screwed up intor place, thus avoidin gthe use of solder and effecting a greatuf.

saving of time and labor.r y

AIn the event of a ppebursting-the fractured portion may be cut out and the pipe pieced in a similar manner to that above described.l

I have heretofore spoken ol my improved screw-coupling as particularly' applicable to leadv pipes; but it is evident that it is equally; applicable to pipes of rubber, gatta-perche, 0r

'other soft or flexible material, or to leather hose. It is ,also cheap 'and ecent, and can' be readily attachedv or removed.

What I claim as my invention, and desire to secure by Letters Patent, is

The within-described detachable coupling, in which the end of the pipe is conined between the two portions B and C, lin the manner substantially as described.

WARREN N. ABBOTT.. Witnesses: A.

P. E. TESCHEMAGHER, N. W. STEARNs.

ple and compressing it tightly on all sidesand 

